T-RefTM is a printed Standard Reference Material
(SRM) for agencies, printers, publishers, separators
...anyone who wants to control color reproduction
quality! T-RefTM consists of a printed sample of
white, yellow, cyan, magenta, and black circular
SWOP ink patches, with readings calibrated to
the ANSI Status "T" response, and with calibration
traceable to National Institute of Science and
Technology primary references.